幼鼠心脏和肾上腺中儿茶酚胺的周转率：饲养温度的影响。

Catecholamine turnover in heart and adrenals of young rats: effects of rearing temperature.

Mouroux I, Bertin R, de Marco F, Portet R

Laboratoire d'Adaptation Energétique à l'Environnement, Ecole Pratique des Hautes Etudes, Paris, France.

Comp Biochem Physiol A Comp Physiol. 1991;100(3):547-53. doi: 10.1016/0300-9629(91)90368-m.

Abstract

A comparative chronological study (from birth to one month of age) was performed to establish the levels and turnover rates of catecholamines in the heart and adrenals of rats born and reared at 28 and 16 degrees C. 2. In the heart, cold induced marked increases of the norepinephrine level and turnover rate only from the second week of age. 3. In the adrenals there was considerable early stimulation of epinephrine production, but only in 28 degrees C rats. 4. The differences observed in the stimulation of the sympathetic nervous system according to the rearing temperature are possibly due to the behavior of the mother in warming the pups.

摘要

进行了一项比较性的时间顺序研究（从出生到1月龄），以确定在28摄氏度和16摄氏度环境下出生并饲养的大鼠心脏和肾上腺中儿茶酚胺的水平及周转率。2. 在心脏中，寒冷仅从第二周龄开始显著增加去甲肾上腺素水平和周转率。3. 在肾上腺中，肾上腺素的产生在早期有相当大的刺激，但仅在28摄氏度环境下饲养的大鼠中出现。4. 根据饲养温度观察到的交感神经系统刺激差异可能归因于母鼠温暖幼崽的行为。